Expert Witness Module

Rent Determination for Expert Witnesses

A rent determination report module built for court-appointed expert witnesses. Produce standardized, court-ready reports in seconds using market value analysis, regional comparable data, and statutory calculation methods.

Features That Simplify the Expert Witness Report

Standardized Report Generation

Generate structured PDF reports that meet legal requirements and can be submitted directly to court.

Historical Market Data

Region- and neighborhood-level historical comparable rent data for the determination period. Historical price trends shown comparatively.

Fast, Error-Free Calculation

Automatically perform market value calculations using CPI/PPI index data. Eliminates the risk of manual errors.

Court-Ready Output

Report format citing the Turkish Civil Code and Code of Obligations, with cited sources, ready for signature. Every step is documented and auditable.

What Is an Expert Witness Rent Determination Report?

In rent determination lawsuits, courts redetermine the rent through judicial channels when a dispute arises between the parties or when the lease reaches the 5-year mark. In this process, the court commissions technical reports from specialist expert witnesses who assess the current market rent of the property. An expert witness rent determination report covers comparable rent analysis, regional market research, CPI/PPI index calculations, and an evaluation of the equity principle.

Kiratespit's expert witness module digitizes this process and significantly reduces the data collection and reporting workload for expert witnesses. By combining regional rent data, index series, and structured report output on a single platform, both accuracy and preparation time improve.

Market Value and Comparable Rent Analysis

The market rent is calculated based on the rental value formed in the market for similar residential or commercial properties in the same area. When determining this value, the expert witness considers the property's location, square footage, orientation, building age, views, and transportation advantages.

A comparable rent analysis examines at least three similar properties' rents on a comparative basis. The Kiratespit module filters registered comparable rents for the selected period and region, providing the expert witness with a ready-made comparison table.

CPI and PPI Index Calculations

In rent determination reports, the 12-month average Consumer Price Index (CPI) and Producer Price Index (PPI) published by TÜİK are used as references. The expert witness calculates the expected value of the current rent from the original contract date to the determination date based on index growth, then compares this with the market rate. This comparison forms the basis for the court to set a fair rent.

The Equity and Fairness Principle

Under Articles 345 et seq. of the Turkish Code of Obligations, the equity and fairness principle — which preserves the mutual balance of interests in the contract — must also be observed when determining rent. Beyond purely mathematical index calculations, the expert witness report evaluates the tenant's payment capacity, the current condition of the property, and the long-term rental relationship between the parties, and proposes a fair rent range. The Kiratespit module allows this assessment to be reflected in the report in a structured way.

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Standardize your rent determination reports, access regional market data, and generate court-ready output quickly.